Filter



FIG. 1 is a top front right perspective view of a first embodiment of afilter showing the new design;

FIG. 2 is a top front right perspective view of the filter with an innerfilter element being removed or inserted from an outer filter elementthereof;

FIG. 3 is a bottom rear left perspective view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left elevational view thereof;

FIG. 7 is a right elevational view thereof;

FIG. 8 is a top plan view thereof;

FIG. 9 is a bottom plan view thereof;

FIG. 10 is a top front right perspective view of the filter of FIG. 1,shown in a second embodiment;

FIG. 11 is a top front right perspective view of the filter with aninner filter element being removed or inserted from an outer filterelement thereof;

FIG. 12 is a bottom rear left perspective view thereof;

FIG. 13 is a front elevational view thereof;

FIG. 14 is a rear elevational view thereof;

FIG. 15 is a left elevational view thereof;

FIG. 16 is a right elevational view thereof;

FIG. 17 is a top plan view thereof; and,

FIG. 18 is a bottom plan view thereof.

The portions shown in the figures in broken lines do not constitute partof the claimed design.

CLAIM The ornamental design for a filter, as shown and described.